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I ran at 30 psi untill one day i had a tire blow out on the interstate...

Im almost positive that because of all the heat generated in the tire from the interstate driving the psi in the tire got above 33psi (the max for my tire) causing it to blow out..

i now run 26-28psi.

also how are u mesuring it to get 30 psi atm? note that Pabsolute = Pgauge + Patm . Patm would be the atmospheric pressure which is only going to be about 14.7 psi. Pgauge is what you want to find because its a closed system and Patm wont affect the air in the tire.

but i dought your actually measuring the Patm. if your using any kind of gauge, youll be measureing the Pabsolute, because these gauges already include Patm in the measurement

also just wanted to add my tires were about 7 years old when it blew out. I ran BFG mud terrain, had about 65,000 miles on em with a little less then 1/2 thread left. Impressive for a mud terrain other then the blow out

No, they are not "rated" at 65 psi, the pressure molded onto a tire's sidewall is only the tire's maximum allowable air pressure to be used only when the tire is carrying its maximum allowable load. Tires used on Jeeps are never carrying anywhere near their max possible load.

I ran at 30 psi untill one day i had a tire blow out on the interstate...

Im almost positive that because of all the heat generated in the tire from the interstate driving the psi in the tire got above 33psi (the max for my tire) causing it to blow out..

i now run 26-28psi.

I highly doubt that. One of the worst conditions for a tire is underinflation which causes excessive heat from the increased flex of the sidewalls while driving. Remember the whole Firestone tire debacle? Slight overinflation won't cause a tire to blow.

also how are u mesuring it to get 30 psi atm? note that Pabsolute = Pgauge + Patm . Patm would be the atmospheric pressure which is only going to be about 14.7 psi. Pgauge is what you want to find because its a closed system and Patm wont affect the air in the tire.

but i dought your actually measuring the Patm. if your using any kind of gauge, youll be measureing the Pabsolute, because these gauges already include Patm in the measurement

I ran the Nitto Mud Grapplers last year in 35x12.5x17's on 17x9 beadlocks, put them at 32 psi street and 10psi front/8psi rear offroad, never an issue. The 17" 35's are load range E though, super tough tire. My jeep was heavy in street trim though, about 5000lbs.

The chalk test is a good way to go. One more point Franky... generally speaking, the bigger the tire, the less pressure it requires where a Wrangler type tire is concerned. With the factory 29-30" tires, the suggested air pressure is, what, 31 psi for a lightly loaded Jeep? So it wouldn't even make sense that the much larger 35" tire would require 30 psi.

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